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  • Written on 15.06.2009 - Industry
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ITWC introduces new line of bio-based polyol systems

ITWC, Inc., Malcom, IA, USA, offers its customers a polyester product based on renewably resourced ingredients from DuPont Tate & Lyle BioProducts (DT&L).

The Poly SR line is a family of polyester polyols for use in applications for elastomers, coatings, and sealants that are based upon Susterra propanediol, a 100% bio-based ingredient produced from corn sugar using DT&L’s proprietary fermentation technology.


ITWC points out, that testing shows virtually no difference in processing and finished product performance between standard 1,4 butanediol based products and the Susterra based products.


The polyester is available in a variety of molecular weights with the most common being 1000 and 2000 and will be identifiable by the product name suffix Poly SR. When incorporated into select MDI prepolymers and crosslinked with EXT-1034, Susterra based elastomers can have up to 50% bio-based content by weight.


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